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Joined 3 years ago
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Cake day: June 10th, 2023

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  • Not just your stomach, but your entire digestive system actually. It’s called the enteric nervous system, and it’s absolutely fascinating (the disfunction of which has recently been linked to a lot of different diseases and disorders). From Wikipedia:

    The enteric nervous system (ENS) is one of the three divisions of the autonomic nervous system (ANS), the others being the sympathetic nervous system (SNS) and parasympathetic nervous system (PSNS). The ENS is formed from the myenteric plexus, and the submucosal plexus, and consists of a mesh-like system of neurons that governs the functions of the gastrointestinal tract, including motility and secretion, and is known as the “second brain”.

    The enteric nervous system is capable of operating independently of the brain and spinal cord

    The enteric nervous system in humans consists of some 500 million neurons, 0.5% of the number of neurons in the brain, five times as many as the one hundred million neurons in the human spinal cord, and about ⅔ as many as in the whole nervous system of a cat. The enteric nervous system is embedded in the lining of the gastrointestinal system, beginning in the esophagus and extending down to the anus.





  • Eh, not as much as you’d think. The back of your neck near the brainstem is crucial to temperature regulation. That’s why the go-to advice to alleviate heat stress is putting something cool like a wet towel around your neck. During midday when the sun is highest, keeping the sun off the back of your neck may well keep you cooler than keeping it off your face. Using your hands to shield your eyes occasionally looks a heck of a lot less dumb than keeping your hands up to shield the back of your neck.

    Moral of the story, baseball hats are great for watching baseball, where you’re sitting facing one direction the whole time and can orient them accordingly. For general outdoor work, a sun hat with a neck flap is waaayyy better.